Combined valve, anchor, and packer



July 2, 1929.

COMBINED Filed Oct. 7, 1927 w. H. BLAKELY 1.719.582

VALVE, ANCHOR, AND PACKER 2 Sheets-Sheet l I -H BLAIIELY Jul 2, 1929. w. H. BLAKELY 1.719.582

COMBINED VALVE, ANCHOR, AND PACK ER Filec} Oct. '7, 1927 2 Sheets-Sheet 2 gwue'ntor WHBZAKEL) Patented July 2, 192 9.

UNITED STATES WILLIAM H. BLAKELY, or TULSA, OKLAHOMA.

COMBINED VALVE, amn on, AND IACKER.

Application filed October -7, 1927. 'SeriaI 'No. 224,669.

My invention consists in new. and useful improvements in a combination valve, anchor and packer for oil well pumps, and has for its object to provide a device of this character which will enable the well to be pumped directly through the casing, thus eliminating the tubing heretofore used. v

Another object of my invention is to provide a device particularly adapted for use in large volume of oil wells, and one which will tightly seal the casing against escaping oil or gas, and at the same time securely anchor the apparatus in thewell casing and serve as a valve container.

A further object of my invention is to provide a device which will greatly reduce the cost of pumping oil wells, and at the same time increase the Volume pumped, making it possible to pump at a profit,,wells whichproduce a large amount of water and a small amount of oil.

My improved device will remove the oil fast enough to lower the height of oil in the well, thus preventing back pressure, which is not the case Whenpump'ing through the usual two inch tubing. In most cases, my de- I I Vice will daily pump the Well practically empty, thus giving the sand the full benefit of the gas pressure. 1

provide a device of the above class which can be manufactured and sold at a reasonable price, within the reach of the small producer.

lVith the above and other objects in view which will appear as the description proceeds, my invention consists in the novel features herein set forth, illustrated in the accom panying drawings, and more particularly pointed out in the appended claims. Y

merals of like character designate similar parts throughout the several views,

Figs. 1 and 1 are views 1n half section and elevation, of the upper and lower portions of" my improved combination valve, anchor and packer, showing the device in place in a well casing. i 7

Fig. 2 isa section on line '22 of Fig. 1, showing the valve stem guide. f a i Fig. 3 is a section on line 33 of Fig. 1, showing the valve seats and the arrangement of the valves A still further object of my invention is to Referring to the drawings, in which nu Fig. 4 is a section taken on line v4 4 of F 1g. 1, showing the lugs and bearingribs, an

Fig. 5 is a. section taken on line 5 5 of F1g. 1, showing the arrangement of the expanders, lugsand expansion rings. I y

In the drawings, 1 represents theusual well casing, 2 the pump rod, and 3 a working barrel of a slightly less diameter than that of the well casing 1, and located in the lower portion of the well. :In this working barrel 3, the working valve (not shown) secured to the lower extremity of the rod 2, is adapted to reciprocate. V

The upper end of the working barrel3 is threaded externally to engage an inwardly threaded cylindrical member 5, which forms the base of my combination valve, anchor and packer. with a series of inwardly projecting alternately spaced lugs 6 and ribs 7 for the purpose hereinafter set forth. above the member 5, and abutting the outer edge thereof, are mounted a series of expansion rings 8, the outer faces of whichare cut to form teeth 8, for engaging the inner surface of the casing 1. NVithin the inner circumference of the rings, 8, and arranged around the axis of the rod 2, I provide a plurality'of T-shaped expanders 9, which rest upon the ribs 7 on the basemember 5, and are adapted to abut the inner surface of said rings, as clearly shown in Fig. 5 ofthe draw ings. I The mner end of the long leg of each Y oftheT-shapedexpanders 9, is inclined toward the center of the rod 2, as clearly shown 111' Fig. l", for the {purpose hereinafter set forth. 7

A mandrel 10,havingupper and-lower taf;

pered surfaces 13 and 14, respectively, and-a stem 10,,secured thereto by athreaded connection, is slidably fixed on the rod 2.- The lower tapered surface 14 of the mandrel 1.0

is adapted to engage the bevelled surface-of the expanders 9, to force theexpansion rings 8 outwardly aga nst the lnner surfaceofthe casing 1.

I 11 and 12 represent in-wardlythreadedcol-j" la'rs adapted to be screwed on the lower, and

upper ends,respectively, of'the mandrel 10,

r as shown in Figs. 1 and 1 of the drawings, .lforthe purpose hereinafter-set forth, said 1 Immediately collars being provided with inwardly projecting flanges which abut the ends of the mandrel, and are apertured to permit the rod 2 to slide freely therethrough.

Above the rings 8 and expanders 9, I mount a cylindrical lower packer follower 15, having an upwardly extending sleeve 16, supporting a packer 17. The follower is provided with a series of inwardly projecting lugs 18, ar 'anged in alignment with the lugs 6 in the base member 5, both of which are apertured to receive the bolt 19 for securing the base 5, the follower 15 and the intermediate members together.

Above the packer 17, and engaging the-upper edge thereof, is an upper packer follower 20, which is cylindrical in form, and has a series of inwardly projecting alternately spaced lugs and ribs, similar to those provided in the base member 5, and the lower packer follower 15. The upper surface of the follower 20, supports another series of expansion rings 21,'and T-shaped expanders 22, similar in all respects to those just mentioned. This second set of expansion rings and expanders is retained in place by means of a cylindrical member 23, having alternately spaced ribs and lugs on the inner surface thereof, similar to those just described, said lugs being apertured to receive a bolt 24 which passes downwardly through the lugs on'the upper follower20.

The upper end of the member 23 is threaded to receive the lower end of a valve container 25, within which is arranged a series of valve seats 26, spaced apart at predetermined points around the mandrel stem 10 27'represents a plurality of valveshavin up wardly extending stems, and 28 designates a valve stem guide ring secured in the upper portion of the member 25, by the bearing ring 29.-

The upper end'of the member is inwardly threaded to engage the lower edge of the cage member 30, which when screwed down in place, abuts the upper edge of the bearing ring 29. The cage member 30 extends upwardly for a portion of'its length,

is then reduced to form an inclined shoulder 31, and again extends upwardly into neck 32, (see Fig. 1). This shoulder 31 is provided with a plurality of ports 33, which permit the passage of oil from the valve formed on the inner surface of the jar 34:.

"While I have shown and described the assembly of the elements comprising my improved apparatus in the foregoing manner, it is obvious that their relativepositions may be changed without detracting from their efficiency. For instance, I have found that by reversing the location of the valve member and placing the same at the bottom of the unit, with the packer arranged at the top, the elements will function with equal effect.

The operation of my combined valve, anchor and packer is as follows:

The unit is. assembled, and as the rods 2 are lowered, the jar 34 strikesthe cage 30 at its upper extremity 32, forcing said cage downwardly, and with it, the intermediate members of the unit. As the upper packer follower 29 descends, it telescopes the. sleeve 16'of the lower packer follower 15, said sleeve holding the packer 17 in place as it is compressed, and forcing the same outwardly against the wall of the casing 1.

As the packer is being set, the mandrel is held in suspension by the upper set of expanders 22, (see Fig. 1)

The jar 34 rests in the above position as the rods continue to be lowered, said ar being free to move up or down on the pumping rod, until the collar 35 comes in contact with the collar 12 on the stem 10 of the mandrel. The rods are then raised and lowered in a series of short strokes, each downward stroke forcing the mandrel downwardly, the tapered surfaces 13 and 14 of the mandrel 1O engaging thetapered surfaces of the T-shaped expanders 22 and 19, causing the same to be forced outwardly against the expansion rings 21 and 8, thus expanding said rings and cansing the teeth thereon to firmly engage the inner surface of the casing 1.

It will be noted that the packer is securely set before the rings are expanded. Otherwise, the rings would hold and prevent the proper setting of the packer, or the teeth on said rings would be stripped if forced down after said rings had securely engaged the wall of the casing.

As a further means of protecting the teeth on the expansion rings, I provide a coil spring 36, Fig. 1, around the rod 2, between the collar 12 and the flange on the neck 32 of the cage 30, which spring relieves the jarring effect upon the mandrel, caused by the jar 3 1 striking the cage 30 in setting the packer, which would otherwise be sutlicient-to force the mandrel down, and set the expansion rings prematurely.

During the setting operation, the collar 12 protects the upper end of the stem 10 from becoming battered whenstruck by the collar 35, when the latter drops to force said mandrel downwardly, and also keeps the mandrel from being driven beyond a predetermined distance, which]: have found in practice, is about one inch. If the movement of said mandrel were not limited, it is obvious that after the tapered portionstravelled beyond the distance required to expand the rings 8, the upper portion of the mandrel would engage the stationary .partsand prevent the operation of the complete unit.

It willbe seen from Fig. 1 that the collar 12 is wickered on its outersurface, as at'12 whereby, in case the rod 2 parted below collar 11, by removing the rod and jar 34: above the break, the proper fishing tools may be lowered to engage said wickers, and the unit removed. v 1

The collar 11, also forms a" protection for the lower end of the mandrel, and prevents said mandrel from being raised to a height that might injure the valve seats 26.

To remove the pump from the well, the travelling valve, not shown, is raised until it strikes the lower collar 11 of the mandrel 10, forcing said mandrel upwardly and re leasing the outward pressure on the rings 8 and 21.

The ring 10 around the central portion of the mandrel 10, raises the upper packer follower 20 as the unit is withdrawn, the dis tance which said follower is raised, equaling the distance required to compress the packer. Here, also, it will be seen that, were it not for the collar .11 on the lower end of the mandrel, said mandrel could be raised to a point at which the ring 18 would strike the top follower 20, and at the same time the upper end of the mandrel 10 at the point where the stem 10 joins the same, would strike the valve seat- 26 and destroy it.

From the foregoing, it is believed that the construction, ope ation and advantages of my invention may be readily understood by those skilled in the art, and I am aware that changes may be made in the details disclosed without departing from the spirit of the invention, as expressed'in the claims.

lVhat I claim and desire to secure by Letters Patent is: H i

1. Apparatus for well pumping, including a casing, a working barrel in said-casing, a' unit arranged on said barrel and comprising,

a valve for controlling the pumpedfluid, an anchorand packer, means for causing said anchor to engage the walls of said casing, and means for compressing said packer against the walls of said casing.

2. Apparatus for well pumping including a casing, a working barrel -in said casing, a unitarranged on said barrel and comprising a valve container having a plurality of valves therein, a series of expansion rings, means for causing said rings to engage the walls of said casing, a packer, and means for com pressing said packer said casing. s

3. Apparatus as claimed in claim 2, wherein said means for expanding said rings, includes a tapered mandrel.

4. Apparatus as claimed in claim 2, where in said means for expanding said rings comagainst the walls of prises a series of expanders adjacent the inner walls ofsald mugs, and a tapered mandrel for forcing said expanders outwardly.

' 5. In combination with. an oil-well casing,

sion rings, a pluralityo'l expanders adjacent the inner walls of said rings, and arranged around the axis of said pump red, the inner ends of said expander-s being inclined, a

tapered mandrel mounted on said rod and adapted to engage the inclined surfacesot said expander-s, whereby when said rod is forced downwardly, a predetermined dis tance, said mandrel will force said expander-s outwardly causing said rings to grip the walls of said casing.

6. Apparatus as claimed in claim 5, wherein the outer faces of said rings are cut to form teeth.

7 Apparatus for well pumping, including a casing, a working barrel, located in the lower portion thereof, a pumping rod, a unit secured to the upper portion of said barrel and comprising a combined valve, anchor and packer, means slidably mounted on said rod for causing said anchor to engage the well. casing, means for compressing said packer against the wall of said casing, and means for with-' drawing the device from the well.

8. Apparatus for wellpumping, including a casing, a working barrel in the lower portion thereof, a pump rod located therein, a unit secured to the upper portion of said barrel and comprising a combined valve, anchor and packer, a tapered mandrel slidable on said rod for causing said anchor to engage the well casing, a jar also slidableon said rod above said mandrel for causing said packer to become compressed against said casing, means onsaid mandrel for limiting its movement, and means for withdrawing the apparatus from the well.

9. Apparatus as claimed in claim 8, where in said means for limiting the movement of said mandrel comprises a collar at each end thereof, also adapted to protect the ends of said mandrel from becoming battered.

10. A unit for use with well pumping, apparatus havinga easing, a Working barrel and a pump rod comprising a combined valve, anchor and packer, surrounding the pump rod and adapted to be secured to said working barrel in the well casing,'said anchor consisting of a series of expansion rings, a plurality of expanders adjacent the inner 'walls of said rings and arranged around the axis of said rod, a tapered mandrel slidably mounted on "said rod and adapted to engage said expanders, collars mounted on the upper and lower extremities of said mandrel, ,a plurality of packer followers above said expansion rings, having a packer interposed between the same, a Valve memher and cage arranged at the upper portion of the unit a jar slidable on said rod above said cage, a collar on said rod within said jar, adapted to abut the upper portion thereof to raise and lower the same with the rod, said jar being adapted to force said cage downwardly to compress said packer, and said rod collar being adapted to abut said upper mandrel collar to force said mandrel downwardly to expand said rings.

11. A unit as claimed in claim 10, wherein means are provided for absorbing the shock as the jar is lowered.

12. A unit as claimed in claim 10, wherein a coil spring is mounted on said mandrel, intermediate the upper collar, and the cage, for absorbing the shock as said ar is lowered.

In testimony whereof I aflix my signature.

lVILLIAM I-I. BLAKELY. 

